截取中文字符防止乱码

js:

var pattern = /^[".chr(0xa1)."-".chr(0xff)."a-zA-Z_]{3,18}$/,
    str = '';
console.log(pattern.test(str));

php:

$str = '';
$isMatched = preg_match('/^[".chr(0xa1)."-".chr(0xff)."a-zA-Z_]{3,18}$/', $str, $matches);
var_dump($isMatched, $matches);

 

n=/^[".chr(0xa1)."-".chr(0xff)."a-zA-Z_]{3,18}$

 

 

 

 

 

 

 

 

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转载于:https://www.cnblogs.com/ChenChunChang/p/8252325.html